PROCESS FOR MAKING A LAUNDRY LIQUID COMPOSITION

Description

[0001] The invention relates to a process for making laundry liquid compositions comprising polyesters.

[0002] DE 10 2007 013 217 A1 and WO 2007/079850 A1 disclose anionic polyesters that may be used as soil release components in washing and cleaning compositions.

[0003] DE 10 2007 005 532 A1 describes aqueous formulations of soil release oligo- and polyesters with a low viscosity.

[0004] EP 0 964 015 A1 discloses soil release oligoesters that may be used as soil release polymers in detergents and that are prepared using polyols comprising 3 to 6 hydroxyl groups.

[0005] EP 1 661 933 A1 is directed to at room temperature flowable, amphiphilic and nonionic oligoesters prepared by reacting dicarboxylic acid compounds, polyol compounds and watersoluble alkylene oxide adducts and their use as additive in washing and cleaning compositions.

[0006] WO 2014/019903 A and EP 2 692 842 A describe liquid detergent compositions including a surfactant, triethanolamine and a polyester soil release polymer.

[0007] Accordingly there is provided a process for making an alkaline laundry liquid composition comprising at least 1% wt. of the composition triethanolamine, at least 5% wt. of the composition non-soap surfactant and at least 0.5% wt. of the composition of a polyester, the process comprising adding an active blend to a composition comprising cleansing surfactant selected from anionic surfactants and nonionic surfactants, characterized in that the active blend is a solution at 25°C and comprises:

A) from 45 to 55 % by weight of the active blend of one or more polyesters according to the following formula (I)

wherein

R¹ and R²

independently of one another are X-(OC₂H₄)_n-(OC₃H₆)_m wherein X is C_1-4 alkyl and preferably methyl, the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group or are HO-(C₃H₆),

n

is based on a molar average a number of from 12 to 120 and preferably of from 40 to 50,

m

is based on a molar average a number of from 1 to 10 and preferably of from 1 to 7, and

a

is based on a molar average a number of from 4 to 9 and

B) from 10 to 30 % by weight of the active blend of one or more alcohols selected from the group consisting of ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol and butyl glycol and

C) from 24 to 42 % by weight of the active blend of water, and wherein component A) includes from 45 to 55 % by weight of the active blend one or more polyesters according to formula (I) wherein f
R¹ and R² independently of one another are X-(OC₂H₄)_n-(OC₃H₆)_m wherein X is C_1-4 alkyl and preferably methyl, the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,
n is based on a molar average a number of from 12 to 120 and preferably of from 40 to 50,
m is based on a molar average a number of from 1 to 10 and preferably of from 1 to 7, and
a is based on a molar average a number of from 4 to 9.

[0008] By active blend is meant that it is preformed and added to the remainder of the laundry liquid composition, or to components which ultimately form the laundry liquid composition.

[0009] Preferably, butyl glycol has the following structure: CH₃(CH₂)₃OCH₂CH₂OH.

[0010] Surprisingly, the active blend is based on water and on solvents that are not easily flammable.

[0011] Aqueous or aqueous-alcoholic solutions of the polyesters often possess a relatively good stability when stored at 5 °C. However, when stored at 25 °C for a longer period of time and even faster at elevated temperatures of from 30 to 50 °C, that may occur during transport or storage, non-inventive compositions of the polyesters at first show a turbidity during storage that later results in massive precipitations. These precipitations cannot be dissolved again at 80 °C, meaning that the respective products may not be regarded as being storage-stable, and their properties are changed irreversibly by storage at elevated temperature.

[0012] The active blend is sufficiently storage-stable, also at elevated temperatures.

[0013] The active blend compositions are solutions at 25 °C.

[0014] In the polyesters of component A) group "X" is C_1-4 alkyl and preferably is methyl.

[0015] In a preferred embodiment the polyesters of component A) are according to the following formula (I)

wherein

R¹ and R²

independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average a number of from 40 to 50,

m

is based on a molar average a number of from 1 to 7, and

a

is based on a molar average a number of from 4 to 9.

[0016] In the polyesters of component A) of the compositions variable "a" based on a molar average preferably is a number of from 5 to 8 and more preferably is a number of from 6 to 7.

[0017] In the polyesters of component A) of the compositions variable "m" based on a molar average preferably is a number of from 2 to 5.

[0018] In the polyesters of component A) of the compositions variable "n" based on a molar average preferably is a number of from 43 to 47, more preferably is a number of from 44 to 46 and even more preferably is 45.

[0019] In one particularly preferred embodiment the polyesters of component A) are according to the following formula (I)

wherein

R¹ and R²

independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average a number of from 44 to 46,

m

is based on a molar average 2, and

a

is based on a molar average a number of from 5 to 8.

[0020] Among these polyesters the polyesters according to formula (I)

wherein

R¹ and R²

independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average 45,

m

is based on a molar average 2, and

a

is based on a molar average a number of from 6 to 7

are especially preferred.

[0021] In another particularly preferred embodiment the polyesters of component A) are according to the following formula (I)

wherein

R¹ and R²

independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average a number of from 44 to 46,

m

is based on a molar average 5, and

a

is based on a molar average a number of from 5 to 8.

[0022] Among these polyesters the polyesters according to formula (I)

wherein

R¹ and R²

independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average 45,

m

is based on a molar average 5, and

a

is based on a molar average a number of from 6 to 7

are especially preferred.

[0023] The groups -O-C₂H₄- in the structural units "X-(OC₂H₄)_n-(OC₃H₆)_m" or "H₃C-(OC₂H₄)_n-(OC₃H₆)_m" are of the formula -O-CH₂-CH₂-.

[0024] The groups -O-C₃H₆- in the structural units indexed with "a", in the structural units "X-(OC₂H₄)_n-(OC₃H₆)_m" or "H₃C-(OC₂H₄)_n-(OC₃H₆)_m" and in the structural units HO-(C₃H₆) are of the formula -O-CH(CH₃)-CH₂- or -O-CH₂-CH(CH₃)-, i.e. are of the formula

REM: COMPOSITIONS

[0025] The active blend compositions may advantageously be used in laundry detergent and fabric care products and in particular in liquid laundry detergent and fabric care products. These laundry detergent and fabric care products may comprise one or more optional ingredients, e.g. they may comprise conventional ingredients commonly used in laundry detergent and fabric care products. Examples of optional ingredients include, but are not limited to builders, surfactants, bleaching agents, bleach active compounds, bleach activators, bleach catalysts, photobleaches, dye transfer inhibitors, color protection agents, anti-redeposition agents, dispersing agents, fabric softening and antistatic agents, fluorescent whitening agents, enzymes, enzyme stabilizing agents, foam regulators, defoamers, malodour reducers, preservatives, disinfecting agents, hydrotopes, fibre lubricants, anti-shrinkage agents, buffers, fragrances, processing aids, colorants, dyes, pigments, anti-corrosion agents, fillers, stabilizers and other conventional ingredients for laundry detergent and fabric care products.

[0026] The active blend compositions have an advantageous stability in alkaline environment, possess a beneficial solubility and advantageously are clearly soluble in alkaline compositions such as heavy duty washing liquids and also possess advantageous soil release properties. In laundry detergent or fabric care products they result in a beneficial washing performance, in particular also after storage. Furthermore, they are storage stable at elevated temperature, i.e. they are clear solutions at elevated temperature also after a prolonged time of storage. In the context of a laundry liquid composition the active blend provides for:

• ease of addition & potentially shorter batch cycle time
• better perfume, preservation & enzyme performance due to addition at lower temperature
• improved polymer delivery.

[0027] The polyesters of component A) of the active blend compositions may advantageously be prepared by a process which comprises heating dimethyl terephthalate (DMT), 1,2-propylene glycol (PG), and X-(OC₂H₄)_n-(OC₃H₆)_m-OH, wherein X is C_1-4 alkyl and preferably methyl, the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to the hydroxyl group -OH and n and m are as defined for the polyesters of component A), with the addition of a catalyst, to temperatures of from 160 to 220 °C, firstly at atmospheric pressure, and then continuing the reaction under reduced pressure at temperatures of from 160 to 240 °C.

[0028] Reduced pressure preferably means a pressure of from 0.1 to 900 mbar and more preferably a pressure of from 0.5 to 500 mbar.

[0029] Preferably, the process for the preparation of the polyesters of component A) of the compositions is characterized in that

a) dimethyl therephthalate, 1,2-propylene glycol, X-(OC₂H₄)_n-(OC₃H₆)_m-OH, wherein X is C_1-4 alkyl and preferably methyl, and a catalyst are added to a reaction vessel, heated under inert gas, preferably nitrogen, to a temperature of from 160 °C to 220 °C to remove methanol and then pressure is reduced to below atmospheric pressure, preferably to a pressure of from 200 to 900 mbar and more preferably to a pressure of from 400 to 600 mbar for completion of the transesterification, and

b) in a second step the reaction is continued at a temperature of from 210 °C to 240 °C and at a pressure of from 0.1 to 10 mbar and preferably of from 0.5 to 5 mbar to form the polyester.

[0030] Sodium acetate (NaOAc) and tetraisopropyl orthotitanate (IPT) is preferably used as the catalyst system in the preparation of the polyesters of component A) of the compositions.

[0031] The preparation of the polyesters of component A) of the active blend compositions is e.g. described in WO 2014/019658 A1.

[0032] Preferably, the one or more alcohols of component B) of the compositions are selected from the group consisting of 1,2-propylene glycol, 1,3-propylene glycol and butyl glycol.

[0033] More preferably, the alcohol of component B) of the compositions is 1,2-propylene glycol.

[0034] The active blend compositions preferably comprise

• of from 45 to 55 % by weight of the one or more polyesters of component A),
• of from 15 to 25 % by weight of the one or more alcohols of component B), and
• of from 24 to 40 % by weight of water of component C),

the amounts in each case being based on the total weight of the active blend.

[0035] The active blend may preferably comprise from 0 to 10 % by weight, and more preferably from 0 to 5 % by weight, of one or more additives, that may generally be used in detergent applications. Additives that may be used are e.g. sequestering agents, complexing agents, polymers different from the one or more polyesters of component A) of the compositions, and surfactants.

[0036] Preferably, the active blend preferably comprises one or more additives (component D)), and in this case the amount of water of component C) preferably is of from 24 to 39.95 % by weight, the amounts in each case being based on the total weight of the active blend.

[0037] The one or more additives of component D) of the active blend are preferably selected from the group consisting of sequestering agents, complexing agents, polymers different from the one or more polyesters of component A) and surfactants.

[0038] Suitable sequestering agents e.g. are polyacrylic acid or acrylic acid / maleic acid copolymers (e.g. Sokalan CP 12S, BASF).

[0039] Suitable complexing agents e.g. are EDTA (ethylene diamine tetraactetate), diethylene triamine pentaacetate, nitrilotriacetic acid salts or iminodisuccinic acid salts.

[0040] Suitable polymers different from the one or more polyesters of component A) of the compositions e.g. are dye transfer inhibitors such as e.g. vinyl pyrrolidone.

[0041] Suitable surfactants may be anionic surfactants such as lauryl sulfate, lauryl ether sulfate, alkane sulfonates, linear alkylbenzene sulfonates, methylester sulfonates, amine oxides or betaine surfactants.

[0042] Preferably, the one or more additives of component D) are present in the active blend compositions in an amount of up to 10 % by weight, and in this case the amount of water of component C) in the active blend compositions preferably is of from 24 to 39.95 % by weight, the amounts in each case being based on the total weight of the active blend.

[0043] More preferably, the one or more additives of component D) are present in the active blend compositions in an amount of from 0.1 to 10 % by weight, and in this case the amount of water of component C) in the active blend compositions preferably is of from 24 to 39.9 % by weight, the amounts in each case being based on the total weight of the active blend.

[0044] Even more preferably, the one or more additives of component D) are present in the active blend compositions in an amount of from 0.5 to 5 % by weight, and in this case the amount of water of component C) in the active blend compositions preferably is of from 24 to 39.5 % by weight, the amounts in each case being based on the total weight of the active blend compositions.

[0045] In a further preferred embodiment the active blend consists of the one or more polyesters of component A), the one or more alcohols of component B), and water of component C).

[0046] Preferably, the viscosity of the active blend compositions, measured at 25 °C, is of from 200 to 5 000 mPa·s

[0047] More preferably, the viscosity of the active blend compositions, measured at 25 °C, is of from 500 to 2 000 mPa·s

[0048] The viscosities are measured on the active blend compositions themselves using a Brookfield-viscosimeter, model DV II and the spindles of the set of spindles RV at 20 revolutions per minute and 25°C. Spindle No. 1 is used for viscosities of up to 500 mPa·s, spindle No. 2 for viscosities of up to 1 000 mPa·s, spindle No. 3 for viscosities of up to 5 000 mPa·s, spindle No. 4 for viscosities of up to 10 000 mPa·s, spindle No. 5 for viscosities of up to 20 000 mPa·s, spindle No. 6 for viscosities of up to 50 000 mPa·s and spindle No. 7 for viscosities of up to 200 000 mPa·s.

[0049] Preferably, the method comprises adding the active blend as described herein and mixing before adding perfume, fragrance or preservative. Preferably, the temperature of the mixture of surfactants to which the active blend is added is not more than 50C and preferably from 10 to 40C.

[0050] Preferred preservatives include BIT (1,2-Benzoisothiazolin-3-one); MIT (Methylisothiazolinone); Phenoxyethanol, IPBC and mixtures thereof.

[0051] Preferred preservative systems include BIT (1,2-Benzoisothiazolin-3-one), BIT (1,2-Benzoisothiazolin-3-one) and MIT (Methylisothiazolinone); and Phenoxyethanol and BIT; Phenoxyethanol and IPBC.

[0052] The examples below are intended to illustrate the invention in detail without, however, limiting it thereto. Unless explicitly stated otherwise, all percentages given are percentages by weight (% by wt. or wt.-%).

General procedure for the preparation of the polyesters

[0053] The polyester synthesis is carried out by the reaction of dimethyl terephthalate (DMT), 1,2-propylene glycol (PG), and methyl polyalkyleneglycol using sodium acetate (NaOAc) and tetraisopropyl orthotitanate (IPT) as the catalyst system. The synthesis is a two-step procedure. The first step is a transesterification and the second step is a polycondensation.

Transesterification

[0054] Dimethyl terephthalate (DMT), 1,2-propylene glycol (PG), methyl polyalkyleneglycol, sodium acetate (anhydrous) (NaOAc) and tetraisopropyl orthotitanate (IPT) are weighed into a reaction vessel at room temperature.

[0055] For the melting process and homogenization, the mixture is heated up to 170 °C for 1 h and then up to 210 °C for a further 1 h sparged by a nitrogen stream. During the transesterification methanol is released from the reaction and is distilled out of the system (distillation temperature < 55 °C). After 2 h at 210 °C nitrogen is switched off and the pressure is reduced to 400 mbar over 3 h.

Polycondensation

[0056] The mixture is heated up to 230 °C. At 230 °C the pressure is reduced to 1 mbar over 160 min. Once the polycondensation reaction has started, 1,2-propylene glycol is distilled out of the system. The mixture is stirred for 4 h at 230 °C and a pressure of 1 mbar. The reaction mixture is cooled down to 140 - 150 °C. Vacuum is released with nitrogen and the molten polymer is transferred into a glass bottle.

Reference Example I

Amount	Amount	Raw Material
[g]	[mol]	[Abbreviation]
101.95	0.53	DMT
84.0	1.104	PG
343.5	0.15	H3C-(OC2H4)45-(OC3H6)5-OH
0.5	0.0061	NaOAc
0.2	0.0007	IPT

[0057] A polyester according to formula (I) is obtained wherein

R¹ and R²

are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average 45,

m

is based on a molar average 5, and

a

is based on a molar average a number of from 6 to 7.

Reference Example II

Amount	Amount	Raw Material
[g]	[mol]	[Abbreviation]
101.95	0.53	DMT
84.0	1.104	PG
317.4	0.15	H3C-(OC2H4)45-(OC3H6)2-OH
0.5	0.0061	NaOAc
0.2	0.0007	IPT

[0058] A polyester according to formula (I) is obtained wherein

R¹ and R²

are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n

is based on a molar average 45,

m

is based on a molar average 2, and

a

is based on a molar average a number of from 6 to 7.

Stability tests

[0059] Solutions according to the compositions of the following table have been prepared by dissolving the polyester in the respective mixture of water and alcoholic solvent. The additive Sokalan CP 12S was dissolved in the final mixture. The mixtures were investigated with respect to their stability in a storage cabinet (+ = clear solution, ○ = turbidity, - = pronounced turbidity / precipitation). Freshly prepared samples are clear solutions.

[0060] The polyester of Example I (Ex. I) has been used for the stability tests.

[0061] Sokalan CP 12S (acrylic acid / maleic acid copolymer, BASF) has been used as the additive.

[0062] From the table it can be seen that solutions of the soil release polyesters in water (Examples 1 - 4) become turbid at 45°C already after two weeks of storage. Compositions comprising 1,2-propylene glycol or butyl glycol are still clear after 4 weeks of storage at 45°C.

EXAMPLE III

[0063] Process for making laundry liquid composition.

[0064] Optical brightener, salt, acids, alkalis & hydrotrope are added to water followed by the surfactants in order: nonionic, LAS then the fatty acid. SLES is then injected in line using a mill. Once SLES is dispersed Texcare SRN UL 50, ex. Clariant (the polyester active blend) is then added. In a separate vessel a pre-mix of dyes & water is made which is then added to the main mixer. After this point the minors are added (preservation & perfume & enzymes if applicable).

Reference examples

Example	Polyester of Ex. I	Water	1,2-Propy-lene glycol	Butyl glycol	Glycerol
	[wt.-%]	[wt.-%]	[wt.-%]	[wt.-%]	[wt.-%]
1	35	65
2	35	64
3	40	60
4	50	50
5	45	44	10
6	45	39	15
7	45	34	20
8	45	24	30
9	45	44		10
10	45	39		15
11	45	34		20
12	50	40	10
13	50	40		10
14	50	39	10
15	50	39		10
16	55	34	10
17	55	34		10
18	50	30	20
19	50	35	15
20	50	29	20
21	50	25	25
22	50	30		20
23	40	50			10
24	45	45			10
25	40	49			10
26	45	44			10
27	50	30			20
28	50	30			20

Reference examples

Example	Additive [wt.-%]	clarity at 45 °C after 2 weeks	clarity at 45 °C after 4 weeks	Viscosity at 25 °C [mPa·s]
1		-	-	250
2	1	-	-	260
3		-	-	850
4		-	-	3300
5	1	-	-
6	1	+	+
7	1	+	+
8	1	+	+
9	1	-	-
10	1	+	+
11	1	+	+
12		+	+
13		+	+
14	1	+	+
15	1	+	+
16		+	○
17		+	+
18		+	+	1170
19		+	+	1260
20	1	+	+	1170
21		+	+	870
22		+	○	285
23		-	-
24		-	-
25	1	-	-
26	1	-	-
27		-	-
28		-	-

Claims

1. A process for making an alkaline laundry liquid composition comprising at least 1% wt. of the composition triethanolamine, at least 5% wt. of the composition non-soap surfactant and at least 0.5% wt. of the composition of a polyester, the process comprising adding an active blend to a composition comprising cleansing surfactant selected from anionic surfactants and nonionic surfactants characterized in that the active blend is a solution at 25°C and comprises:

A) from 45 to 55 % by weight of the active blend one or more polyesters according to the following formula (I)

wherein

R¹ and R² independently of one another are X-(OC₂H₄)_n-(OC₃H₆)_m wherein X is C_1-4 alkyl and preferably methyl, the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group or are HO-(C₃H₆),

n is based on a molar average a number of from 12 to 120 and preferably of from 40 to 50,

m is based on a molar average a number of from 1 to 10 and preferably of from 1 to 7, and

a is based on a molar average a number of from 4 to 9 and

B) from 10 to 30 % by weight of the active blend one or more alcohols selected from the group consisting of ethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol and butyl glycol and

C) from 24 to 42 % by weight of the active blend water, and wherein
component A) includes from 45 to 55 % by weight of the active blend one or more polyesters according to the following formula (I)

wherein

R¹ and R² independently of one another are X-(OC₂H₄)_n-(OC₃H₆)_m wherein X is C_1-4 alkyl and preferably methyl, the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n is based on a molar average a number of from 12 to 120 and preferably of from 40 to 50,

m is based on a molar average a number of from 1 to 10 and preferably of from 1 to 7, and

a is based on a molar average a number of from 4 to 9.

2. The process according to claim 1, characterized in that in the one or more polyesters of component A)

R¹ and R² independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n is based on a molar average a number of from 40 to 50,

m is based on a molar average a number of from 1 to 7, and

a is based on a molar average a number of from 4 to 9.

3. The process according to claim 1 or 2, characterized in that in the one or more polyesters of component A) a based on a molar average is a number of from 5 to 8.

4. The process according to claim 3, characterized in that in the one or more polyesters of component A) a based on a molar average is a number of from 6 to 7.

5. The process according to one or more of claims 1 to 4, characterized in that in the one or more polyesters of component A) m based on a molar average is a number of from 2 to 5.

6. The process according to one or more of claims 1 to 5, characterized in that in the one or more polyesters of component A) n based on a molar average is a number of from 43 to 47.

7. The process according to claim 6, characterized in that in the one or more polyesters of component A) n based on a molar average is a number of from 44 to 46.

8. The process according to claim 7, characterized in that in the one or more polyesters of component A) n based on a molar average is 45.

9. The process according to one or more of claims 1 to 3 and 5 to 7, characterized in that in the one or more polyesters of component A)

R¹ and R² independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n is based on a molar average a number of from 44 to 46,

m is based on a molar average 2, and

a is based on a molar average a number of from 5 to 8.

10. The process according to claim 9, characterized in that in the one or more polyesters of component A) n based on a molar average is 45, and a based on a molar average is a number of from 6 to 7.

11. The process according to one or more of claims 1 to 3 and 5 to 7, characterized in that in the one or more polyesters of component A)

R¹ and R² independently of one another are H₃C-(OC₂H₄)_n-(OC₃H₆)_m wherein the -(OC₂H₄) groups and the -(OC₃H₆) groups are arranged blockwise and the block consisting of the -(OC₃H₆) groups is bound to a COO group,

n is based on a molar average a number of from 44 to 46,

m is based on a molar average 5, and

a is based on a molar average a number of from 5 to 8.

12. The process according to claim 11, characterized in that in the one or more polyesters of component A) n based on a molar average is 45, and a based on a molar average is a number of from 6 to 7.

13. The process according to one or more of claims 1 to 12, characterized in that the one or more alcohols of component B) are selected from the group consisting of 1,2-propylene glycol, 1,3-propylene glycol and butyl glycol.

14. The process according to claim 13, characterized in that the alcohol of component B) is 1,2-propylene glycol.

15. The process according to one or more of claims 1 to 14, characterized in that the active blend comprises

- of from 45 to 55 % by weight of the active blend of the one or more polyesters of component A),

- of from 15 to 25 % by weight of the active blend of the one or more alcohols of component B), and

- of from 24 to 40 % by weight of the active blend water of component C).

16. The process according to one or more of claims 1 to 15, characterized in that the active blend comprises one or more additives (component D)), and in this case the amount of water preferably is of from 24 to 39.95 % by weight of the active blend.

17. The process according to claim 16, characterized in that the one or more additives of component D) are selected from the group consisting of sequestering agents, complexing agents, polymers different from the one or more polyesters of component A) and surfactants.

18. The process according to claim 16 or 17, characterized in that the one or more additives of component D) are present in the composition in an amount of up to 10 % by weight of the active blend, and in this case the amount of water preferably is of from 24 to 39.95 % by weight of the active blend.

19. The process according to one or more of claims 16 to 18, characterized in that the one or more additives of component D) are present in the composition in an amount of from 0.1 to 10 % by weight, and in this case the amount of water preferably is of from 24 to 39.9 % by weight, the amounts in each case being based on the total weight of the active blend.

20. The process according to one or more of claims 16 to 19, characterized in that the one or more additives of component D) are present in the composition in an amount of from 0.5 to 5 % by weight, and in this case the amount of water preferably is of from 24 to 39.5 % by weight, the amounts in each case being based on the total weight of the active blend.

21. The process according to one or more of claims 1 to 15, characterized in that the active blend consists of the one or more polyesters of component A), the one or more alcohols of component B), and water.

22. The process according to one or more of claims 1 to 21, characterized in that its viscosity of the active blend measured at 25 °C is of from 200 to 5 000 mPa·s.

23. The process according to claim 22, characterized in that its viscosity of the active blend measured at 25 °C is of from 500 to 2 000 mPa·s.

Ansprüche

1. Verfahren zur Herstellung einer alkalischen flüssigen Waschmittelzusammensetzung, umfassend mindestens 1 Gew.-% der Zusammensetzung Triethanolamin, mindestens 5 Gew.-% der Zusammensetzung Nicht-Seifen-Tensid und mindestens 0,5 Gew.-% der Zusammensetzung eines Polyesters, wobei das Verfahren die Zugabe einer aktiven Mischung zu einer Zusammensetzung umfasst, die Reinigungstensid umfasst, ausgewählt unter anionischen Tensiden und nichtionischen Tensiden, dadurch gekennzeichnet, dass die aktive Mischung bei 25°C eine Lösung ist und umfasst:

A) von 45 bis 55 Gewichts-% der aktiven Mischung eines oder mehrerer Polyester gemäß der folgenden Formel (I)

worin

R¹ und R² unabhängig voneinander X-(OC₂H₄)_n-(OC₃H₆)_m sind, wobei X C_1-4-Alkyl und vorzugsweise Methyl ist, die -(OC₂H₄)-Gruppen und die -(OC₃H₆)-Gruppen blockweise angeordnet sind und der Block, der aus den -(OC₃H₆)-Gruppen besteht, an eine COO-Gruppe gebunden ist oder HO-(C₃H₆) darstellt,

n , bezogen auf einen molaren Durchschnitt, eine Zahl von 12 bis 120 und vorzugsweise von 40 bis 50 ist,

m , bezogen auf einen molaren Durchschnitt, eine Zahl von 1 bis 10 und vorzugsweise von 1 bis 7 ist und

a , bezogen auf einen molaren Durchschnitt, eine Zahl von 4 bis 9 ist und

B) von 10 bis 30 Gewichts-% der aktiven Mischung eines oder mehrerer Alkohole, ausgewählt aus der Gruppe, bestehend aus Ethylenglykol, 1,2-Propylenglykol, 1,3-Propylenglykol, 1,2-Butylenglykol, 1,3-Butylenglykol, 1,4-Butylenglykol und Butylglykol und

C) von 24 bis 42 Gewichts-% der aktiven Mischung Wasser und worin der Bestandteil A) 45 bis 55 Gewichts-% der aktiven Mischung eines oder mehrerer Polyester gemäß der folgenden Formel (I) enthält,

worin

R¹ und R² unabhängig voneinander X-(OC₂H₄)_n-(OC₃H₆)_m, sind, wobei X C_1-4-Alkyl und vorzugsweise Methyl ist, die -(OC₂H₄)-Gruppen und die -(OC₃H₆)-Gruppen blockweise angeordnet sind und der Block, der aus den -(OC₃H₆)-Gruppen besteht, an eine COO-Gruppe gebunden ist,

n , bezogen auf einen molaren Durchschnitt, eine Zahl von 12 bis 120 und vorzugsweise von 40 bis 50 ist,

m , bezogen auf einen molaren Durchschnitt, eine Zahl von 1 bis 10 und vorzugsweise von 1 bis 7 ist und

a , bezogen auf einen molaren Durchschnitt, eine Zahl von 4 bis 9 ist.

2. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A)

R¹ und R² unabhängig voneinander H₃C-(OC₂H₄)_n-(OC₃H₆)_m sind, worin die -(OC₂H₄)-Gruppen und die -(OC₃H₆)-Gruppen blockweise angeordnet sind und der Block, der aus den -(OC₃H₆)-Gruppen besteht, an eine COO-Gruppe gebunden ist,

n , bezogen auf einen molaren Durchschnitt, eine Zahl von 40 bis 50 ist,

m , bezogen auf einen molaren Durchschnitt, eine Zahl von 1 bis 7 ist und

a , bezogen auf einen molaren Durchschnitt, eine Zahl von 4 bis 9 ist.

3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) a, bezogen auf einen molaren Durchschnitt, eine Zahl von 5 bis 8 ist.

4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) a, bezogen auf einen molaren Durchschnitt, eine Zahl von 6 bis 7 ist.

5. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) m, bezogen auf einen molaren Durchschnitt, eine Zahl von 2 bis 5 ist.

6. Verfahren nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in dem einem oder den mehreren Polyestern des Bestandteils A) n, bezogen auf einen molaren Durchschnitt, eine Zahl von 43 bis 47 ist.

7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) n, bezogen auf einen molaren Durchschnitt, eine Zahl von 44 bis 46 ist.

8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) n, bezogen auf einen molaren Durchschnitt, 45 ist.

9. Verfahren nach einem oder mehreren der Ansprüche 1 bis 3 und 5 bis 7, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A)

R¹ und R² unabhängig voneinander H₃C-(OC₂H₄)_n-(OC₃H₆)_m sind, worin die -(OC₂H₄)-Gruppen und die -(OC₃H₆)-Gruppen blockweise angeordnet sind und der Block, der aus den -(OC₃H₆)-Gruppen besteht, an eine COO-Gruppe gebunden ist,

n , bezogen auf einen molaren Durchschnitt, eine Zahl von 44 bis 46 ist,

m , bezogen auf einen molaren Durchschnitt, 2 ist und

a , bezogen auf einen molaren Durchschnitt, eine Zahl von 5 bis 8 ist.

10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) n, bezogen auf einen molaren Durchschnitt, 45 ist und a, bezogen auf einen molaren Durchschnitt, eine Zahl von 6 bis 7 ist.

11. Verfahren nach einem oder mehreren der Ansprüche 1 bis 3 und 5 bis 7, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A)

R¹ und R² unabhängig voneinander H₃C-(OC₂H₄)_n-(OC₃H₆)_m sind, worin die -(OC₂H₄)-Gruppen und die -(OC₃H₆)-Gruppen blockweise angeordnet sind und der Block, der aus den -(OC₃H₆)-Gruppen besteht, an eine COO-Gruppe gebunden ist,

n , bezogen auf einen molaren Durchschnitt, eine Zahl von 44 bis 46 ist,

m , bezogen auf einen molaren Durchschnitt, 5 ist und

a , bezogen auf einen molaren Durchschnitt, eine Zahl von 5 bis 8 ist.

12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, dass in dem einen oder den mehreren Polyestern des Bestandteils A) n, bezogen auf einen molaren Durchschnitt, 45 ist und a, bezogen auf einen molaren Durchschnitt, eine Zahl von 6 bis 7 ist.

13. Verfahren nach einem oder mehreren der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass der eine oder die mehreren Alkohole des Bestandteils B) aus der Gruppe ausgewählt sind, die aus 1,2-Propylenglykol, 1,3-Propylenglykol und Butylglykol besteht.

14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass der Alkohol des Bestandteil B) 1,2-Propylenglykol ist.

15. Verfahren nach einem oder mehreren der Ansprüche 1 bis 14, dadurch gekennzeichnet, dass die aktive Mischung umfasst

- von 45 bis 55 Gewichts-% der aktiven Mischung eines oder mehrerer Polyester des Bestandteils A),

- von 15 bis 25 Gewichts-% der aktiven Mischung eines oder mehrerer Alkohole des Bestandteils B) und

- von 24 bis 40 Gewichts-% der aktiven Mischung Wasser des Bestandteils C).

16. Verfahren nach einem oder mehreren der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass die aktive Mischung ein oder mehrere Additive (Bestandteil D)) umfasst und in diesem Fall die Wassermenge vorzugsweise von 24 bis 39,95 Gewichts-% der aktiven Mischung beträgt.

17. Verfahren nach Anspruch 16, dadurch gekennzeichnet, dass das eine oder die mehreren Additive des Bestandteils D) aus der Gruppe ausgewählt sind, die aus Sequestrierungsmitteln, Komplexbildnern, Polymeren, die sich von dem einen oder den mehreren Polyestern des Bestandteils A) unterscheiden, und Tensiden besteht.

18. Verfahren nach Anspruch 16 oder 17, dadurch gekennzeichnet, dass das eine oder die mehreren Additive des Bestandteils D) in der Zusammensetzung in einer Menge von bis zu 10 Gewichts-% der aktiven Mischung vorliegen und in diesem Fall die Wassermenge vorzugsweise von 24 bis 39,95 Gewichts-% der aktiven Mischung beträgt.

19. Verfahren nach einem oder mehreren der Ansprüche 16 bis 18, dadurch gekennzeichnet, dass das eine oder die mehreren Additive des Bestandteils D) in der Zusammensetzung in einer Menge von 0,1 bis 10 Gewichts-% vorliegen und in diesem Fall die Wassermenge vorzugsweise von 24 bis 39,9 Gewichts-% beträgt, wobei sich die Mengen in jedem Falle auf das Gesamtgewicht der aktiven Mischung beziehen.

20. Verfahren nach einem oder mehreren der Ansprüche 16 bis 19, dadurch gekennzeichnet, dass das eine oder die mehreren Additive des Bestandteils D) in der Zusammensetzung in einer Menge von 0,5 bis 5 Gewichts-% vorliegen und in diesem Falle die Wassermenge vorzugsweise von 24 bis 39,5 Gewichts-% beträgt, wobei sich die Mengen in jedem Fall auf das Gesamtgewicht der aktiven Mischung bezieht.

21. Verfahren nach einem oder mehreren der Ansprüche 1 bis 15, dadurch gekennzeichnet, dass die aktive Mischung aus dem einen oder den mehreren Polyestern des Bestandteils A), dem einen oder den mehreren Alkoholen des Bestandteils B) und Wasser besteht.

22. Verfahren nach einem oder mehreren der Ansprüche 1 bis 21, dadurch gekennzeichnet, dass die Viskosität der aktiven Mischung, gemessen bei 25°C, von 200 bis 5000 mPa.s beträgt.

23. Verfahren nach Anspruch 22, dadurch gekennzeichnet, dass die Viskosität der aktiven Mischung, gemessen bei 25°C, von 500 bis 2000 mPa.s beträgt.

Revendications

1. Procédé de fabrication d'une composition liquide de lessive alcaline comprenant au moins 1 % en masse de la composition de triéthanolamine, au moins 5 % en masse de la composition de tensioactif de non-savon et au moins 0,5 % en masse de la composition d'un polyester, le procédé comprenant l'addition d'une combinaison active à une composition comprenant un tensioactif nettoyant choisi parmi des tensioactifs anioniques et des tensioactifs non ioniques caractérisé en ce que la combinaison active est une solution à 25°C et comprend :

A) de 45 à 55 % en masse de la combinaison active d'un ou plusieurs polyesters selon la formule (I) suivante

où

R¹ et R² sont indépendamment l'un de l'autre X-(OC₂H₄)_n-(OC₃H₆)_m où X est un groupe alkyle en C_1-4 et de préférence méthyle, les groupes -(OC₂H₄) et les groupes -(OC₃H₆) sont disposés en séquence et la séquence consistant en les groupes -(OC₃H₆) est liée à un groupe COO ou sont HO-(C₃H₆),

n est sur la base d'une moyenne molaire un nombre de 12 à 120 et de préférence de 40 à 50,

m est sur la base d'une moyenne molaire un nombre de 1 à 10 et de préférence de 1 à 7, et

a est sur la base d'une moyenne molaire un nombre de 4 à 9, et

B) de 10 à 30 % en masse de la combinaison active d'un ou plusieurs alcools choisis dans le groupe consistant en éthylène glycol, 1,2-propylène glycol, 1,3-propylène glycol, 1,2-butylène glycol, 1,3-butylène glycol, 1,4-butylène glycol et butyl glycol et

C) de 24 à 42 % en masse de la combinaison active d'eau, et où le constituant A) inclut de 45 à 55 % en masse de la combinaison active d'un ou plusieurs polyesters selon la formule (I) suivante

où

R¹ et R² sont indépendamment l'un de l'autre X-(OC₂H₄)_n-(OC₃H₆)_m où X est un groupe alkyle en C_1-4 et de préférence méthyle, les groupes -(OC₂H₄) et les groupes -(OC₃H₆) sont disposés en séquence et la séquence consistant en les groupes -(OC₃H₆) est liée à un groupe COO,

n est sur la base d'une moyenne molaire un nombre de 12 à 120 et de préférence de 40 à 50,

m est sur la base d'une moyenne molaire un nombre de 1 à 10 et de préférence de 1 à 7, et

a est sur la base d'une moyenne molaire un nombre de 4 à 9.

2. Procédé selon la revendication 1, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A)

R¹ et R² sont indépendamment l'un de l'autre H₃C-(OC₂H₄)_n-(OC₃H₆)_m où les groupes -(OC₂H₄) et les groupes -(OC₃H₆) sont disposés en séquence et la séquence consistant en les groupes -(OC₃H₆) est liée à un groupe COO,

n est sur la base d'une moyenne molaire un nombre de 40 à 50,

m est sur la base d'une moyenne molaire un nombre de 1 à 7 et

a est sur la base d'une moyenne molaire un nombre de 4 à 9.

3. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) a sur la base d'une moyenne molaire est un nombre de 5 à 8.

4. Procédé selon la revendication 3, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) a sur la base d'une moyenne molaire est un nombre de 6 à 7.

5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) m sur la base d'une moyenne molaire est un nombre de 2 à 5.

6. Procédé selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) n sur la base d'une moyenne molaire est un nombre de 43 à 47.

7. Procédé selon la revendication 6, caractérisé en ce que dans les ou plusieurs polyesters de constituant A) n sur la base d'une moyenne molaire est un nombre de 44 à 46.

8. Procédé selon la revendication 7, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) n sur la base d'une moyenne molaire est égal à 45.

9. Procédé selon l'une ou plusieurs des revendications 1 à 3 et 5 à 7, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A)

R¹ et R² sont indépendamment l'un de l'autre H₃C-(OC₂H₄)_n-(OC₃H₆)_m où les groupes -(OC₂H₄) et les groupes -(OC₃H₆) sont disposés en séquence et la séquence consistant en les groupes -(OC₃H₆) est liée à un groupe COO,

n est sur la base d'une moyenne molaire un nombre de 44 à 46,

m est sur la base d'une moyenne molaire égal à 2, et

a est sur la base d'une moyenne molaire un nombre de 5 à 8.

10. Procédé selon la revendication 9, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) n est sur la base d'une moyenne molaire égal à 45, et a sur la base d'une moyenne molaire est un nombre de 6 à 7.

11. Procédé selon l'une ou plusieurs des revendications 1 à 3 et 5 à 7, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A)

R¹ et R² sont indépendamment l'un de l'autre H₃C-(OC₂H₄)_n-(OC₃H₆)_m où les groupes -(OC₂H₄) et les groupes -(OC₃H₆) sont disposés en séquence et la séquence consistant en les groupes -(OC₃H₆) est liée à un groupe COO,

n est sur la base d'une moyenne molaire un nombre de 44 à 46,

m est sur la base d'une moyenne molaire égal à 5, et

a est sur la base d'une moyenne molaire un nombre de 5 à 8.

12. Procédé selon la revendication 11, caractérisé en ce que dans les un ou plusieurs polyesters de constituant A) n sur la base d'une moyenne molaire est égal à 45, et a sur la base d'une moyenne molaire est un nombre de 6 à 7.

13. Procédé selon l'une ou plusieurs des revendications 1 à 12, caractérisé en ce que les uns ou plusieurs alcools de constituant B) sont choisis dans le groupe consistant en 1,2-propylène glycol, 1,3-propylène glycol et butyl glycol.

14. Procédé selon la revendication 13, caractérisé en ce que l'alcool de constituant B) est le 1,2-propylène glycol.

15. Procédé selon l'une ou plusieurs des revendications 1 à 14, caractérisé en ce que la combinaison active comprend

- de 45 à 55 % en masse de la combinaison active des un ou plusieurs polyesters de constituant A),

- de 15 à 25 % en masse de la combinaison active des un ou plusieurs alcools de constituant B), et

- de 24 à 40 % en masse de la combinaison active d'eau de constituant C).

16. Procédé selon l'une ou plusieurs des revendications 1 à 15, caractérisé en ce que la combinaison active comprend un ou plusieurs additifs (constituant D)), et que dans ce cas la quantité d'eau est de préférence de 24 à 39,95 % en masse de la combinaison active.

17. Procédé selon la revendication 16, caractérisé en ce que les un ou plusieurs additifs de constituant D) sont choisis dans le groupe consistant en agents séquestrants, agents complexants, polymères différents du un ou plusieurs polyesters de constituant A) et tensioactifs.

18. Procédé selon la revendication 16 ou 17, caractérisé en ce que les un ou plusieurs additifs de constituant D) sont présents dans la composition dans une quantité allant jusqu'à 10 % en masse de la combinaison active, et que dans ce cas la quantité d'eau est de préférence de 24 à 39,95 % en masse de la combinaison active.

19. Procédé selon l'une ou plusieurs des revendications 16 à 18, caractérisé en ce que les un ou plusieurs additifs de constituant D) sont présents dans la composition dans une quantité de 0,1 à 10 % en masse, et que dans ce cas la quantité d'eau est de préférence de 24 à 39,9 % en masse, les quantités dans chaque cas étant basées sur la masse totale de la combinaison active.

20. Procédé selon l'une ou plusieurs des revendications 16 à 19, caractérisé en ce que les un ou plusieurs additifs de constituant D) sont présents dans la composition dans une quantité de 0,5 à 5 % en masse, et que dans ce cas la quantité d'eau est de préférence de 24 à 39,5 % en masse, les quantités dans chaque cas étant basées sur la masse totale de la combinaison active.

21. Procédé selon l'une ou plusieurs des revendications 1 à 15, caractérisé en ce que la combinaison active consiste en les un ou plusieurs polyesters de constituant A), les uns ou plusieurs alcools de constituant B), et eau.

22. Procédé selon l'une ou plusieurs des revendications 1 à 21, caractérisé en ce que sa viscosité de la combinaison active mesurée à 25°C est de 200 à 5 000 mPa.s.

23. Procédé selon la revendication 22, caractérisé en ce que sa viscosité de la combinaison active mesurée à 25°C est de 500 à 2 000 mPa.s.